1.
Which equation does the model represent?
A.
x
+ 5 = -1
B.
x
+ (-5) = -1
C.
x
+ (-5) = 1
D.
x
+ 5 = 1
Hint
2.
Solve the equation 14 = 7 +
x
.
A.
7
B.
-7
C.
-21
D.
2
Hint
3.
Which equation does the model represent?
A.
x
+ 3 = 2
B.
x
+ (-2) = -3
C.
x
+ (-3) = -2
D.
x
+ 2 = 3
Hint
4.
Solve the equation
x
+ 8 = 4.
A.
xv
= -12
B.
x
= 12
C.
x
= -4
D.
x
= 4
Hint
5.
Carmen and her friend Marva have a total of 15 pets. If Marva has 12 pets, how many pets does Carmen have?
A.
27
B.
3
C.
31
D.
5
Hint